2142120206 has 16 divisors (see below), whose sum is σ = 3325987440. Its totient is φ = 1033502400.

The previous prime is 2142120151. The next prime is 2142120221. The reversal of 2142120206 is 6020212412.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94205 + ... + 114711.

It is an arithmetic number, because the mean of its divisors is an integer number (207874215).

Almost surely, 2^2142120206 is an apocalyptic number.

2142120206 is a deficient number, since it is larger than the sum of its proper divisors (1183867234).

2142120206 is a wasteful number, since it uses less digits than its factorization.

2142120206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22339.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2142120206 is about 46283.0444763522. The cubic root of 2142120206 is about 1289.0841818221.

Adding to 2142120206 its reverse (6020212412), we get a palindrome (8162332618).

The spelling of 2142120206 in words is "two billion, one hundred forty-two million, one hundred twenty thousand, two hundred six".